MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

Get extra R 1,400 off
USE CODE: askschfd09

				   

size of gallium is less than aluminium due to d-orbitals,but why so?

4 years ago

Share

Answers : (2)

										

Hi Ranjita,


 


The atomic radius of the Ga is less than Al because of poor screening effect.


The atomic radius of Ga is slightly lesser than of Al because in going from Al to Ga, the electrons have already occupied 3d sub shell in Ga. The screening effect of these intervening electrons being poor, has less influence to decrease the effective nuclear charge, therefore the electrons in Ga experience more forces of attractions towards nucleus to result in lower size of Ga than Al.


 


Regards,


Ashwin (IIT Madras).



4 years ago
										
The shielding effect of d-orbitals is very poor due to it’s diffused-spreading-shape in case of gallium. The d-orbital have diffused nature and thus poor shielding-effect.The shielding is just reducing impact of effective positive nuclear charge on the outer most electrons. The position of Gallium is just immediately after Zn which has completly filled d-orbitals ( 10 electrons). This makes the pronunced effect of nuclear charge (Zeff) and we find reduction in atomic radius of Gallium. It is thus diffused d-orbitals and their inability to shield the strong +ve charge which changes the trend of Atomic Radius. The Ga At. radius is thus unexpectedly smaller than Al and change in trend of Periodic Table set-up.  
one year ago

Post Your Answer

Other Related Questions on Inorganic Chemistry

the hybridization of phosphorus in PCl 5 (in solid state ) is 1)sp 3 2)sp 3 d 2 3)sp 3 d 4)both 1 and 2
 
 
@ krishna option no 3 turns out to be the correct option , here , the orbitals are filled by electrons of five cl atom . there are 5 p-cl sigma bond , three in one plane and make an angle...
 
Umakant biswal one month ago
 
i hope to no.3 because phosphours atom contain in last subshell is 5 electron and not contain a lone pair and here is 5 chlorine atom .then we add up eletron and we get a 10 and we devided...
 
sahabudin ali one month ago
 
I hope to option no 3.because it has 5 sigma bonds and no lone pairs of electrons,here,the orbital are filled by electrons of five cl atoms
 
Gavvala Ganesh one month ago
 
Sp3d. This is because hybridization depends on the lone pair of electrons on the central atom and the number of bonds it forms. P forms 5 bonds with no lone pair hence an sp3d hybridized....
 
3 days ago
When the speed of an electron increases, its specific charge
 
 
As per the theory of relativity, as the velocity of electron increases its mass also increases. As specific charge is inversely proportional to mass, as mass increases specific charge...
 
Amogh Dasture 4 months ago
 
@ mandeep we know that specific charges are e/m e/m is inversely proportional to the velocity of the electron ,, therefore as speed of the electron increases , the specific charges...
 
Umakant biswal 4 months ago
 
When the spped of an electron increases, its charge /mass ratio or specific charge decreases.................................................
 
Mudit 4 months ago
.Why li2CO3 decomposed at a lower temperature whereas Na2CO3 at higher temp?
 
 
The smaller the size of the ion, the higher the lattice energy and the greater the extent of the polarization. Li+ has a smaller size compared to Na+, hence polarizes the CO3- ion at a...
 
2017 years ago
I have op tandon for organic chemistry but my teacher says it`s not that good any idea what r must buy for organic? For problems I have himanshu pandey book
 
 
@ harsha yes ,o.p tandon is not at all required for organic chemistry , beacuse there are many concept which areabove the level of which jee advanced actually tests . so, for that reason...
 
Umakant biswal 3 months ago
 
frst of all gowith ncert , then solve all ques from himanshu pandey , if u are now at class 11 th then go with morrision and boyd , and if on class 12 th , then go with shortcuts for...
 
Umakant biswal 3 months ago
 
op tondon is not so good for jee main because its material has lot of time comsuming and it has a higher level book. you can do first ncrt problems then you take any other books for jee...
 
Sahabudin 16 days ago
What are analgesics and food preservatives.........?
 
 
Analgesics are drugs that reduce or totally abolish pain without causing disturbances of nervous system. There are two types of analgesics i. Narcotic analgesics E.g.: Morphine ii....
 
SAI SARDAR 5 months ago
 
Analgesis is defined as the drugs that reduce or abolish pain without causing impairment of conciousness,mental confusion,incoordinationor paralysis or some other disturbances of nervous...
 
somprasad 5 months ago
 
An analgesic or painkiller is any member of the group of drugs used to achieve analgesia , relief from pain. Analgesic drugs act in various ways on the peripheral and central nervous...
 
Umakant biswal 5 months ago
What are biodegradable and non-biodegradable detergents?
 
 
Biodegradable detergents: Cleansing agents or detergents which are decomposed by microbes are called biodegradable detergents. Their molecules have less branching. Non-biodegradable...
 
SAI SARDAR 5 months ago
 
1. Biodegradable Detergents are those detergents which can be degraded or decomposed by microorganisms present in water.such detergents have straight chain of hydrocarbons in the...
 
somprasad 5 months ago
 
1.Biodegradable dete rgents :Detergents having straight hydrocarbon chains are easily degraded(decomposed) by microorganisms .e.g.sodium lauryl sulphate. 2.Non-biodegradable detergents...
 
xavier 5 months ago
View all Questions »

  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 15,000 off
USE CODE: askschfd09

Get extra R 1,400 off
USE CODE: askschfd09

More Questions On Inorganic Chemistry

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details